Sony XR-C7200R, Руководство по обслуживанию, Страница: 18 / 43

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FM Stereo Separation Adjustment
Setting:
[SOURCE]
button: FM
Procedure:
L-CH Stereo separation:
A
-
B
R-CH Stereo separation:
C
-
D
The separations of both channels should be equal.
Specification: Separation more than 26 dB
Adjustment Location: See page 20.
FM Stereo
Level meter Level meter
signal generator
connection reading (dB)
output channel
L-CH L-CH
A
B
R-CH L-CH Adjust RV4 on TU10
for minimum reading.
R-CH R-CH
C
D
L-CH R-CH Adjust RV4 on TU10
for minimum reading.
FM RF signal
generator
Carrier frequency : 98.0 MHz
Output level
: 70 dB (3.2 mV)
Mode : stereo
Modulation : main : 1 kHz, 20 kHz deviation (26.5%)
sub : 1 kHz, 20 kHz deviation (26.5%)
: 19 kHz pilot: 7.5 kHz deviation (10%)
0.01
µ
F
set
antenna jack (J10)
+
–
speaker out terminal
level meter
4
Ω
FM RDS S-Meter Adjustment
Setting :
[SOURCE]
button: FM
Procedure :
1. Set to the test mode. (See page 16.)
2. Push the
[SOURCE]
button and set to FM.
Display
3. Push the preset
[10]
button.
4. Adjust RV110 on MAIN board so that the display indication
is “16.0”.
Display
Specification : Display indication : 15.8 to 16.2.
Adjustment Location : See page 20.
set
antenna jack (J10)
FM RF signal
generator
Carrier frequency : 98.00 MHz
Output level : 35 dB (56.2
µ
V)
Mode : mono
Modulation : no modulation
0.01
µ
F
REG
SHUF1
REG
SHUF1